DOI: 10.1016/j.foreco.2013.12.009
Scopus记录号: 2-s2.0-84891361817
论文题名: Forest structure and composition at fire edges of different ages: Evidence of persistent structural features on the landscape
作者: Harper K.A. ; Drapeau P. ; Lesieur D. ; Bergeron Y.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 314 起始页码: 131
结束页码: 140
语种: 英语
英文关键词: Deadwood
; Edge development
; Edge influence
; Fire edges
; Structural development
Scopus关键词: Black spruce boreal forests
; Black spruce forests
; Deadwood
; Edge development
; Edge influence
; Heterogeneous landscapes
; Spatio-temporal dynamics
; Structural development
; Fires
; Reforestation
; age class
; boreal forest
; canopy architecture
; community composition
; coniferous forest
; dead wood
; edge effect
; forest canopy
; forest edge
; forest fire
; landscape ecology
; landscape structure
; regeneration
; snag
; understory
; Canada
; Quebec [Canada]
英文摘要: Boreal forest landscapes are dynamic with stands in different stages of development following stand-replacing disturbances such as fire and insect outbreaks. Forest edges are an important component of these heterogeneous landscapes but there have been few studies on intermediate-aged forest edges which are needed for a comprehensive perspective on the spatiotemporal dynamics of forest edges. We described the structure, composition and extent of edge influence at 13, 25 and 39-year old fire edges in black spruce boreal forest in northwestern Québec and northeastern Ontario to characterize their structural development and to assess effects of edge development on the understorey. Forest structure and understorey composition were sampled along transects perpendicular to edges of the fires. Edge influence was assessed using randomization tests. Black spruce forest was relatively unaffected by edge influence beyond 5. m into the forest at all ages of edges studied. Edge influence on the understorey was weak and not extensive at intermediate-aged edges with few consistent responses of individual species. Less decayed snags and logs at 13 and 25-year old edges peaked in abundance at or near the edge with values higher than in either adjacent ecosystem. Overall, intermediate-aged fire edges in black spruce forest showed little evidence of further changes in canopy structure with time. Structural development of these edges as well as the regeneration of the disturbed areas also resulted in reduced edge influence on the understorey. A new insight from our study is that intermediate-aged forest edges may contribute unique structural features to landscapes such as a reservoir of deadwood that may be important for wildlife species. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66141
Appears in Collections: 影响、适应和脆弱性
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作者单位: Chaire industrielle CRSNG UQAT-UQAM en aménagement forestier durable, Centre d'Étude de la Forêt, Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, QC J9X 5E4, Canada
Recommended Citation:
Harper K.A.,Drapeau P.,Lesieur D.,et al. Forest structure and composition at fire edges of different ages: Evidence of persistent structural features on the landscape[J]. Forest Ecology and Management,2014-01-01,314